Facile Synthesis and Characterization of Symmetric N-[(Phenylcarbonyl) carbamothioyl]benzamide Thiourea: Experimental and Theoretical Investigations
作者:Rafael Silveira、Anderson Catão、Beatriz Cunha、Fernando Almeida、Rodrigo Correa、Luan Diniz、Juan Tenório、Javier Ellena、Aleksey Kuznetsov、Alzir Batista、Edésio Alcântara
DOI:10.21577/0103-5053.20180129
日期:——
A thiourea derivative, N-[(phenylcarbonyl)carbamothioyl]benzamide, was synthesized and characterized by elemental analysis, thermal analysis, spectroscopic methods (Fourier transform infrared (FTIR), UV-Vis, Raman, matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF), tandem mass spectrometry (MS/MS) and nuclear magnetic resonance (NMR)) and quantum-chemical calculations
合成了硫脲衍生物N-[((苯基羰基)氨基甲硫酰基]苯甲酰胺,并通过元素分析,热分析,光谱学方法(傅里叶变换红外(FTIR),UV-Vis,拉曼,基质辅助激光解吸电离时间-飞行质谱(MALDI-TOF),串联质谱(MS / MS)和核磁共振(NMR))以及量子化学计算。合成路线简单高效,只需一步即可完成,无需纯化步骤。该化合物在具有P212121空间群的非中心对称正交晶体系统中结晶,其中a = 5.06220(10),b = 11.8623(3),c = 21.9682(8)。固体的分子构象由N–H···O分子内氢键稳定,它存在于X射线结构中,并且还存在于优化的几何形状中。理论分析表明,即使分子被溶剂化,这种强相互作用仍然存在,即旋转势垒和氢键强度大于溶剂稳定能。除了这种氢键作用外,苯基的相对位置还对该硫脲的化学行为产生一定的影响,并且可能对其他苯基硫脲也有一定的影响。